2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Paint chordal graphs.
23 * @author Sebastian Hack
36 #include "iredges_t.h"
40 #include "bechordal_t.h"
42 #include "bechordal_draw.h"
46 be_chordal_env_t *env;
52 #define decl_self(type, from) \
53 type *self = (type *) from
55 static void set_color(plotter_t *_self, const color_t *color)
57 decl_self(base_plotter_t, _self);
61 static const color_t *get_color(const plotter_t *_self)
63 decl_self(const base_plotter_t, _self);
67 static void set_width(plotter_t *_self, int width)
69 decl_self(base_plotter_t, _self);
73 static int get_width(const plotter_t *_self)
75 decl_self(const base_plotter_t, _self);
79 static void plotter_default_free(plotter_t *self)
93 | _ \/ ___| | _ \| | ___ | |_| |_ ___ _ __
94 | |_) \___ \ | |_) | |/ _ \| __| __/ _ \ '__|
95 | __/ ___) | | __/| | (_) | |_| || __/ |
96 |_| |____/ |_| |_|\___/ \__|\__\___|_|
100 static void ps_begin(plotter_t *_self, const rect_t *vis)
103 decl_self(ps_plotter_t, _self);
105 f = self->f = fopen(self->filename, "wt");
106 fprintf(f, "%%!PS-Adobe-2.0\n");
107 fprintf(f, "%%%%BoundingBox: %d %d %d %d\n", vis->x, vis->y, vis->w, vis->h);
109 fprintf(f, "/mainfont /Courier findfont %f scalefont def\n", 10.0);
110 fprintf(f, "mainfont setfont\n");
114 static void ps_setcolor(plotter_t *_self, const color_t *color)
116 decl_self(ps_plotter_t, _self);
117 set_color(_self, color);
119 fprintf(self->f, "%.2f %.2f %.2f setrgbcolor\n",
120 color->r, color->g, color->b);
123 static void ps_line(plotter_t *_self, int x1, int y1, int x2, int y2)
125 decl_self(ps_plotter_t, _self);
127 fprintf(self->f, "%d %d moveto\n", x1, y1);
128 fprintf(self->f, "%d %d lineto\n", x2, y2);
129 fprintf(self->f, "stroke\n");
132 static void ps_box(plotter_t *_self, const rect_t *rect)
134 decl_self(ps_plotter_t, _self);
136 fprintf(self->f, "%d %d %d %d rectstroke\n",
137 rect->x, rect->y, rect->w, rect->h);
140 void ps_text(plotter_t *_self, int x, int y, const char *str)
142 decl_self(ps_plotter_t, _self);
144 fprintf(self->f, "%d %d moveto\n", x, y);
145 fprintf(self->f, "(%s) show\n", str);
148 static void ps_finish(plotter_t *_self)
150 decl_self(ps_plotter_t, _self);
154 const plotter_if_t ps_plotter_vtab = {
167 plotter_t *new_plotter_ps(const char *filename)
169 ps_plotter_t *ps_plotter = XMALLOC(ps_plotter_t);
170 plotter_t *p = (plotter_t *) ps_plotter;
172 ps_plotter->filename = filename;
173 p->vtab = &ps_plotter_vtab;
178 _____ _ _ _____ ____ _ _ _
179 |_ _(_) | __|__ / | _ \| | ___ | |_| |_ ___ _ __
180 | | | | |/ / / / | |_) | |/ _ \| __| __/ _ \ '__|
181 | | | | < / /_ | __/| | (_) | |_| || __/ |
182 |_| |_|_|\_\/____| |_| |_|\___/ \__|\__\___|_|
186 /* chriswue: the following seems to be unused and can be deleted? */
190 const char *filename;
194 static void tikz_begin(plotter_t *_self, const rect_t *vis)
197 decl_self(tikz_plotter_t, _self);
199 f = self->f = fopen(self->filename, "wt");
200 fprintf(f, "\\begin{tikzpicture}\n");
203 static void tikz_setcolor(plotter_t *_self, const color_t *color)
205 set_color(_self, color);
208 static void tikz_line(plotter_t *_self, int x1, int y1, int x2, int y2)
210 decl_self(tikz_plotter_t, _self);
211 fprintf(self->f, "\t\\draw (%d,%d) -- (%d,%d);\n", x1, y1, x2, y2);
214 static void tikz_box(plotter_t *_self, const rect_t *rect)
216 decl_self(tikz_plotter_t, _self);
218 fprintf(self->f, "\t\\draw (%d,%d) rectangle (%d, %d)\n",
219 rect->x, rect->y, rect->x + rect->w, rect->y + rect->h);
222 void tikz_text(plotter_t *_self, int x, int y, const char *str)
224 decl_self(tikz_plotter_t, _self);
225 fprintf(self->f, "\t\\draw (%d,%d) node {%s};\n", x, y, str);
228 static void tikz_finish(plotter_t *_self)
230 decl_self(tikz_plotter_t, _self);
236 extern void plotter_free(plotter_t *self)
238 self->vtab->free(self);
242 const draw_chordal_opts_t draw_chordal_def_opts = {
243 10, 10, 30, 8, 10, 10
246 typedef struct _draw_chordal_env_t {
247 const be_chordal_env_t *chordal_env;
248 const arch_register_class_t *cls;
251 const draw_chordal_opts_t *opts;
254 } draw_chordal_env_t;
264 #define doz(a, b) MAX((a) - (b), 0)
266 static void block_dims_walker(ir_node *block, void *data)
268 draw_chordal_env_t *env = data;
269 struct list_head *head = get_block_border_head(env->chordal_env, block);
270 const draw_chordal_opts_t *opts = env->opts;
271 struct block_dims *dims = OALLOCZ(&env->obst, struct block_dims);
274 dims->min_step = INT_MAX;
276 list_for_each_entry_reverse(border_t, b, head, list) {
277 ir_node *irn = b->irn;
278 const arch_register_t *reg = arch_get_irn_register(irn);
279 int col = arch_register_get_index(reg);
281 dims->max_step = MAX(dims->max_step, b->step);
282 dims->max_color = MAX(dims->max_color, col);
283 env->max_color = MAX(env->max_color, col);
289 dims->box.w = (dims->max_color + 2) * opts->h_inter_gap;
290 dims->box.h = dims->max_step * opts->v_inter_gap;
292 dims->box.w = dims->box.h = 10;
295 pmap_insert(env->block_dims, block, dims);
298 static void layout(const draw_chordal_env_t *env, ir_node *bl, int x)
300 const draw_chordal_opts_t *opts = env->opts;
301 struct block_dims *dims = pmap_get(env->block_dims, bl);
302 rect_t *rect = &dims->subtree_box;
307 memset(rect, 0, sizeof(*rect));
310 dominates_for_each(bl, sub) {
311 struct block_dims *bl_dim = pmap_get(env->block_dims, sub);
313 layout(env, sub, rect->x + rect->w);
315 rect->w += h_space + bl_dim->subtree_box.w;
316 rect->h = MAX(rect->h, bl_dim->subtree_box.h);
318 h_space = opts->h_gap;
319 v_space = opts->v_gap;
322 rect->w = MAX(rect->w, dims->box.w + opts->h_gap);
324 dims->box.x = x + doz(rect->w, dims->box.w) / 2;
325 dims->box.y = rect->h + v_space;
327 rect->h = dims->box.y + dims->box.h;
330 static void set_y(const draw_chordal_env_t *env, ir_node *bl, int up)
332 const draw_chordal_opts_t *opts = env->opts;
333 struct block_dims *dims = pmap_get(env->block_dims, bl);
334 int max_height = dims->subtree_box.h - dims->box.h - opts->v_gap;
337 dominates_for_each(bl, sub) {
338 struct block_dims *bl_dim = pmap_get(env->block_dims, sub);
339 int height_diff = max_height - bl_dim->subtree_box.h;
341 set_y(env, sub, up + height_diff);
344 dims->subtree_box.y += up;
348 static color_t *reg_to_color(const draw_chordal_env_t *env,
349 ir_node *rel_bl, ir_node *irn, color_t *color)
352 const ir_edge_t *edge;
356 foreach_out_edge(irn, edge)
357 phi_arg |= is_Phi(edge->src);
360 color->r = is_Phi(irn) ? 0.5 : 0.0;
361 color->g = phi_arg ? 0.5 : 0.0;
365 int live_in = is_live_in(rel_bl, irn);
366 int live_out = is_live_out(rel_bl, irn);
377 static void draw_block(ir_node *bl, void *data)
379 static const color_t black = { 0, 0, 0 };
380 const draw_chordal_env_t *env = data;
381 const be_lv_t *lv = be_get_birg_liveness(env->chordal_env->birg);
382 struct list_head *head = get_block_border_head(env->chordal_env, bl);
383 ir_node *dom = get_Block_idom(bl);
384 const draw_chordal_opts_t *opts = env->opts;
385 struct block_dims *dims = pmap_get(env->block_dims, bl);
390 ir_snprintf(buf, sizeof(buf), "%F", bl);
392 env->plotter->vtab->set_color(env->plotter, &black);
393 env->plotter->vtab->box(env->plotter, &dims->box);
396 env->plotter->vtab->text(env->plotter, dims->box.x, dims->box.y, buf);
399 list_for_each_entry(border_t, b, head, list) {
401 const arch_register_t *reg = arch_get_irn_register(b->irn);
402 int col = arch_register_get_index(reg);
403 int live_out = be_is_live_out(lv, bl, b->irn);
404 int x = (col + 1) * opts->h_inter_gap;
405 int ystart = (b->step) * opts->v_inter_gap;
406 int ystop = (b->other_end->step) * opts->v_inter_gap + (live_out ? 0 : opts->v_inter_gap / 2);
409 reg_to_color(env, bl, b->irn, &color);
412 ystart += dims->box.y;
413 ystop += dims->box.y;
415 env->plotter->vtab->set_color(env->plotter, &color);
416 env->plotter->vtab->line(env->plotter, x, ystart, x, ystop);
418 env->plotter->vtab->line(env->plotter, x - 2, ystart, x + 2, ystart);
419 env->plotter->vtab->line(env->plotter, x - 2, ystop, x + 2, ystop);
424 struct block_dims *dom_dims = pmap_get(env->block_dims, dom);
426 be_lv_foreach(lv, bl, be_lv_state_in, idx) {
427 ir_node *irn = be_lv_get_irn(lv, bl, idx);
428 if (arch_irn_consider_in_reg_alloc(env->cls, irn)) {
429 const arch_register_t *reg = arch_get_irn_register(irn);
430 int col = arch_register_get_index(reg);
431 int x = (col + 1) * opts->h_inter_gap;
434 reg_to_color(env, bl, irn, &color);
436 env->plotter->vtab->set_color(env->plotter, &color);
437 env->plotter->vtab->line(env->plotter,
439 dims->box.y + dims->box.h,
447 static void draw(draw_chordal_env_t *env, const rect_t *start_box)
449 plotter_t *p = env->plotter;
454 bbox.w = start_box->w + 2 * env->opts->x_margin;
455 bbox.h = start_box->h + 2 * env->opts->y_margin;
457 lv = be_assure_liveness(env->chordal_env->birg);
458 be_liveness_assure_sets(lv);
459 be_liveness_assure_chk(lv);
461 p->vtab->begin(p, &bbox);
462 irg_block_walk_graph(env->chordal_env->irg, draw_block, NULL, env);
466 void draw_interval_tree(const draw_chordal_opts_t *opts, const be_chordal_env_t *chordal_env, plotter_t *plotter)
468 draw_chordal_env_t env;
469 struct block_dims *start_dims;
470 ir_node *start_block = get_irg_start_block(chordal_env->irg);
473 env.block_dims = pmap_create();
474 env.plotter = plotter;
475 env.cls = chordal_env->cls;
477 env.chordal_env = chordal_env;
478 obstack_init(&env.obst);
480 irg_block_walk_graph(chordal_env->irg, block_dims_walker, NULL, &env);
481 layout(&env, start_block, opts->x_margin);
482 set_y(&env, start_block, opts->y_margin);
483 start_dims = pmap_get(env.block_dims, start_block);
484 draw(&env, &start_dims->subtree_box);
486 pmap_destroy(env.block_dims);
487 obstack_free(&env.obst, NULL);